kou commented on code in PR #40514:
URL: https://github.com/apache/arrow/pull/40514#discussion_r1534600591


##########
dev/release/verify-release-candidate.sh:
##########
@@ -499,6 +499,35 @@ maybe_setup_conda() {
   fi
 }
 
+install_maven() {
+  MAVEN_VERSION=3.8.7
+  SYSTEM_MAVEN_VERSION=$(mvn -v | head -n 1 | awk '{print $3}')
+
+  if [[ "$MAVEN_VERSION" == "$SYSTEM_MAVEN_VERSION" ]]; then
+      show_info "System Maven version ${SYSTEM_MAVEN_VERSION} matches required 
Maven version ${MAVEN_VERSION}. Skipping installation."

Review Comment:
   ```suggestion
       show_info "System Maven version ${SYSTEM_MAVEN_VERSION} matches required 
Maven version ${MAVEN_VERSION}. Skipping installation."
   ```



##########
dev/release/verify-release-candidate.sh:
##########
@@ -499,6 +499,35 @@ maybe_setup_conda() {
   fi
 }
 
+install_maven() {
+  MAVEN_VERSION=3.8.7
+  SYSTEM_MAVEN_VERSION=$(mvn -v | head -n 1 | awk '{print $3}')
+
+  if [[ "$MAVEN_VERSION" == "$SYSTEM_MAVEN_VERSION" ]]; then
+      show_info "System Maven version ${SYSTEM_MAVEN_VERSION} matches required 
Maven version ${MAVEN_VERSION}. Skipping installation."
+  else
+      older_version=$(printf '%s\n%s\n' "$SYSTEM_MAVEN_VERSION" 
"$MAVEN_VERSION" | sed 's/$/|/' | sort -V | sed 's/|$//' | head -n1)
+      if [[ "$older_version" == "$SYSTEM_MAVEN_VERSION" ]]; then
+        show_info "Installing Maven version ${MAVEN_VERSION}..."
+        
APACHE_MIRROR="https://www.apache.org/dyn/closer.lua?action=download&filename=";
+        curl -sL -o apache-maven-${MAVEN_VERSION}-bin.tar.gz \
+          
${APACHE_MIRROR}/maven/maven-3/${MAVEN_VERSION}/binaries/apache-maven-${MAVEN_VERSION}-bin.tar.gz
+        tar xzf apache-maven-${MAVEN_VERSION}-bin.tar.gz
+        export PATH=$(pwd)/apache-maven-${MAVEN_VERSION}/bin:$PATH
+        show_info "Installed Maven version $(mvn -v | head -n 1 | awk '{print 
$3}')"
+      else
+        show_info "System Maven version ${SYSTEM_MAVEN_VERSION} is newer than 
minimum version ${MAVEN_VERSION}. Skipping installation."
+      fi

Review Comment:
   ```suggestion
       older_version=$(printf '%s\n%s\n' "$SYSTEM_MAVEN_VERSION" 
"$MAVEN_VERSION" | sed 's/$/|/' | sort -V | sed 's/|$//' | head -n1)
       if [[ "$older_version" == "$SYSTEM_MAVEN_VERSION" ]]; then
         show_info "Installing Maven version ${MAVEN_VERSION}..."
         
APACHE_MIRROR="https://www.apache.org/dyn/closer.lua?action=download&filename=";
         curl -sL -o apache-maven-${MAVEN_VERSION}-bin.tar.gz \
           
${APACHE_MIRROR}/maven/maven-3/${MAVEN_VERSION}/binaries/apache-maven-${MAVEN_VERSION}-bin.tar.gz
         tar xzf apache-maven-${MAVEN_VERSION}-bin.tar.gz
         export PATH=$(pwd)/apache-maven-${MAVEN_VERSION}/bin:$PATH
         show_info "Installed Maven version $(mvn -v | head -n 1 | awk '{print 
$3}')"
       else
         show_info "System Maven version ${SYSTEM_MAVEN_VERSION} is newer than 
minimum version ${MAVEN_VERSION}. Skipping installation."
       fi
   ```



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